Mark Ruffalo, the Zodiac and The Kids Are Alright actor, has been placed on the terror advisory list by US officials after he arranged screenings of a documentary on natural gas drilling, reports latimes.com.

Mark is a well known for his views against natural gas drilling and has raised concerns over the effect it is having on America’s water supplies.

His efforts to raise awareness against the drillings with the screening of the documentary Gasland, brought him under the radar of Pennsylvania Office of Homeland Security, which has put him on the terror watchlist.

What is Mark’s reaction to this? The actor told GQ magazine that his presence on the record was pretty f**kin' funny. He serems tickled about being placed on this exclusive watchlist.

 Mark Ruffalo plays Hulk in the upcoming movie The Avengers.